1 Clinic for Gastroenterology, Hepatology and Infectious Diseases, University Hospital Düsseldorf, Medical Faculty of Heinrich Heine University Düsseldorf, Düsseldorf, Germany Sven.Loosen@med.uni-duesseldorf.de.
2 Epidemiology, IQVIA, Frankfurt, Germany.
3 Department of Internal Medicine, Christian Albrechts University of Kiel, Kiel, Germany.
4 Clinic for Gastroenterology, Hepatology and Infectious Diseases, University Hospital Düsseldorf, Medical Faculty of Heinrich Heine University Düsseldorf, Düsseldorf, Germany.